Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Monotonic and cyclic flexural behaviour of square/rectangular rubberized concrete-filled steel tubes
AbstractThis paper focuses on the assessment of the behaviour of Concrete Filled Steel Tube (CFST) columns with square/rectangular cross-section, made with Rubberized Concrete (RuC), under flexural loading. The study aims to evaluate the differences between this type of composite members and typical CFST members made with standard concrete (StdC), namely in terms of the influence of the rubber aggregate replacement ratio on member strength, ductility, and energy dissipation capacity. The experimental campaign comprised the testing of 16 square members, 12 RuCFST and 4 StdCFST, and 4 rectangular RuCFSTs. A number of parameters were investigated, namely the cross-section slenderness (i.e., the width-to-thickness ratio of the steel tube), the aggregate replacement ratio (i.e., the percentage of sand aggregate of the concrete mixture that is substituted by rubber particles), axial load level and lateral loading type. The test results are compared with the member capacities obtained with the application of Eurocode 4. The results show a minimal influence of the type of concrete infill on the monotonic and cyclic behaviour of the members and also allow concluding that the European code is conservative in predicting the capacity of the specimens. Furthermore, the results obtained demonstrate that the cross-section slenderness has an important role on the behaviour of these members. Nonetheless, the requirements pertaining this parameter that are currently defined in Eurocodes 4 and 8 can be relaxed.
Graphical abstract
HighlightsExperimental assessment of the flexural behaviour of square/rectangular rubberized CFSTs is presentedInfluence of concrete typology, cross-section slenderness and lateral loading regime on the flexural response of CFSTs is presentedSquare/rectangular CFST and RuCFST test specimens exhibited a ductile behaviour, both under monotonic and cyclic loadingTest results point to a possible relaxation of the cross-section slenderness limits defined in Eurocode 4 and 8.
Monotonic and cyclic flexural behaviour of square/rectangular rubberized concrete-filled steel tubes
AbstractThis paper focuses on the assessment of the behaviour of Concrete Filled Steel Tube (CFST) columns with square/rectangular cross-section, made with Rubberized Concrete (RuC), under flexural loading. The study aims to evaluate the differences between this type of composite members and typical CFST members made with standard concrete (StdC), namely in terms of the influence of the rubber aggregate replacement ratio on member strength, ductility, and energy dissipation capacity. The experimental campaign comprised the testing of 16 square members, 12 RuCFST and 4 StdCFST, and 4 rectangular RuCFSTs. A number of parameters were investigated, namely the cross-section slenderness (i.e., the width-to-thickness ratio of the steel tube), the aggregate replacement ratio (i.e., the percentage of sand aggregate of the concrete mixture that is substituted by rubber particles), axial load level and lateral loading type. The test results are compared with the member capacities obtained with the application of Eurocode 4. The results show a minimal influence of the type of concrete infill on the monotonic and cyclic behaviour of the members and also allow concluding that the European code is conservative in predicting the capacity of the specimens. Furthermore, the results obtained demonstrate that the cross-section slenderness has an important role on the behaviour of these members. Nonetheless, the requirements pertaining this parameter that are currently defined in Eurocodes 4 and 8 can be relaxed.
Graphical abstract
HighlightsExperimental assessment of the flexural behaviour of square/rectangular rubberized CFSTs is presentedInfluence of concrete typology, cross-section slenderness and lateral loading regime on the flexural response of CFSTs is presentedSquare/rectangular CFST and RuCFST test specimens exhibited a ductile behaviour, both under monotonic and cyclic loadingTest results point to a possible relaxation of the cross-section slenderness limits defined in Eurocode 4 and 8.
Monotonic and cyclic flexural behaviour of square/rectangular rubberized concrete-filled steel tubes
Silva, A. (Autor:in) / Jiang, Y. (Autor:in) / Castro, J.M. (Autor:in) / Silvestre, N. (Autor:in) / Monteiro, R. (Autor:in)
Journal of Constructional Steel Research ; 139 ; 385-396
05.09.2017
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Monotonic and cyclic flexural behaviour of square/rectangular rubberized concrete-filled steel tubes
| British Library Online Contents | 2017
Monotonic and cyclic flexural behaviour of square/rectangular rubberized concrete-filled steel tubes
| Online Contents | 2017
Monotonic and cyclic flexural behaviour of square/rectangular rubberized concrete-filled steel tubes
| British Library Online Contents | 2017
Experimental assessment of the flexural behaviour of circular rubberized concrete-filled steel tubes
| British Library Online Contents | 2016
Parametric study on the flexural behaviour of circular rubberized concrete-filled steel tubes
| British Library Conference Proceedings | 2018